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成都电子机械高等专科学校毕业设计（论文）0审定成绩：成都电子机械高等专科学校毕业设计（论文）设计（论文）题目：基于单片机自动豆浆机控制电路设计系部名称：机电工程系学生姓名：何继茂专业：机电一体化技术班级：08413学号：15指导教师：雷莉萍答辩组负责人：填表时间：2011年5月28日成都电子机械高等专科学校毕业设计（论文）1摘要论文针对:目前流行的智能豆浆机大都采用微电脑控制，只要启动豆浆机，打浆、煮浆完全自动化，短短十几分钟就自动做好豆浆，既卫生可靠，又快捷方便。本文介绍的智能豆浆机系统由MCS-51系列单片机、温度传感器、加热电路、防溢电路、打浆电路、报警电路等组成，豆浆生产完全自动化。其工作过程是：先将黄豆放入豆浆机内，内倒入适量的水，装好机头。接上电源，指示灯LED亮起，处于待命状态。按下功能键开始加热，当温度达到80℃左右时，停止加热；电机运转，将黄豆粉碎，而后电机停转，又开始加热，直到豆浆第一次沸腾，停止加热，进入防溢延煮过程，防溢延煮后，发出报警声，提示豆浆已做好。若缺水，则关闭加热器和电机，并发出报警声，直到关闭电源，加水后才能继续使用。豆浆生产的工序包括打浆、煮浆、防溢延煮，而三个工序又密切配合，使生产的豆浆味道更好，不同的豆浆种类，打浆和煮浆的时间和次数都不一样。磨浆前进行预加热，既可以提高工作效率，又缩短煮浆的时间，防止磨浆后煮浆时间过长所易造成的糊锅现象。关键词：MCS-51，豆浆机，控制系统，稳压电源。成都电子机械高等专科学校毕业设计（论文）2AbstractThesis:mostofthecurrentpopularmicrocomputerintelligentcontrolofsoybeanmilk,soybeanmilkaslongasthestart,beating,boilingsyrupfullyautomatedOf,justtenminutestoautomaticallymakesoymilk,hygienicandreliable,andconvenient.ThisarticledescribesthesystemconsistsofIntelligentSoymilkMCS-51seriesmicrocontroller,temperaturesensor,heatingcircuit,anti-overflowcircuit,beatingcircuits,alarmcircuitsandothercomponents,milkproductionandfullyautomated.Theworkingprocessis:firstsoybeansintosoybeanmilkmachine,theinsideintotheamountofwater,installagoodnose.Connectthepower,LEDindicatorlightsonstandby.Pressthefunctionkeytostarttheheating,whenthetemperaturereachesabout80℃,stopheating;motorisrunning,thesoybeancrush,andthenthemotorstopped,theybegantoheatuntilboilingmilkforthefirsttime,stopheating,cookingprocessextendedintothespill,extensionofboiledanti-overflow,analarmsound,suggestingthatsoymilkisready.Ifthewater,turnofftheheaterandmotor,andthealarmwillsounduntilthepoweroff,addwatertocontinueusing.Milkproductionprocess,includingbeating,boilingsyrup,anti-boiledoverflowextension,whilethethreeprocessesandcloselywiththemtotheproductionofmilktastebetter,differenttypesofmilk,beatingandcookingtimeandnumberofpulpisnotthesame.Pre-heatingbeforetherefiner,canenhancetheworkefficiency,andshortenthecookingtimeofslurrytopreventthelongcookingtime,aftergrindingthepastepotcouldeasilyleadtothephenomenon.Keywords:MCS-51,soybeanmilkmachine,controlsystem,powersupply.成都电子机械高等专科学校毕业设计（论文）3目录摘要.........................................................................................................................................................................................................1Abstract...................................................................................................................................................................................................2第一章绪论...........................................................................................................................................................................................11.1引言..........................................................................................................................................................................................11.2原理..........................................................................................................................................................................................1第二章设计方案选定...........................................................................................................................................................................12.1设计思路..................................................................................................................................................................................12.2方案设计..................................................................................................................................................................................12.3方案论证..................................................................................................................................................................................2第三章豆浆机控制系统的功能分析...................................................................................................................................................33.1控制系统的硬件分析..............................................................................................................................................................33.2控制系统的软件分析..............................................................................................................................................................3第四章豆浆机控制系统的硬件设计...................................................................................................................................................54.1电源电路设计..........................................................................................................................................................................54.1.1电源的作用...................................................................................................................................................................54.1.2电源的组成..................................................................................................................................